Lubricating-bolt



H. M. NAUGLE.

LUBRICATINKG BOLT. APPLICATION FILED IuLY 23, 1919.

Patented Aug. 30, 1921. 3 5 2 SHEETS-SHEET l.

H. M.. NAUGLE.

LUBRiCATING BOLT. APPmcVATloN FILED 1uLY2a,1919.

Patented Aug. 30, 1921.

2 SHEETS-SHEET 2.

HARRY vllVf. NAUGLE, OF CANTON,

si orrics.

OHIO, ASSIGNOR TO THE ALLOY 'PARTS MANUFAC- TURING COMPANY, OF`CA1\TTI.O1\T, OHIO, A CORPORATION O OHIO.

LUBRICATING-BOLT.

` Application filed July 23,

To @ZZ 7.o 720m t may con-cern Be it'known that I, HARRY M. NAUGLE, acitizen of the United Statesfresiding at Canton, in the county of Starkand State of Ohio, have invented a new and useful Lubricating-Bolt, ofwhich the vfollowing is a specification. v

The invention relates tolubricatingsprin bolts of the typeused inautomobiles and similar vehicles for connecting the springs to the frameof the machine 'orf j to .the shackles or for any other mechanism, inwhich a bolt is used for a bearing; and the objects of the invention areto provide .a hollow lubricating bolt, the hollow interior of the boltcomprising a grease or oil chamber Within which is located suitablemeans operable from the exterior Vto force the grease or oil throughslots or apertures iny the bolt; to provide further distribution oflubrication on the bearing surface; to provide a simple and inexpensivebolt of this character.-fformed from Va flat sheet metal blank pressedinto proper shape and having its adjoining edges welded together. Y

Vith these objects in view the invention consists in the novelconstruction Vand arrangement of parts, hereinafter described,illustrated inthe accompanying drawings, and particularly pointed outinthe appended claims, it-being-understood that various changes in theform, proportions,size and minor details of construction may be madewithin the scope `of the appended claims, without departing' vfrom thespirit or sacrificing any of the advantages of the invention.

The invention thus set forth in general terms is illustrated intheaccompanying drawings forming part hereof, in whiche Figure l is aplanvview of a gland from which the bolt is formed.

F ig. 2 is a detail perspective view of the bolt. t

Fig. 3 is a longitudinal sectional view through the bolt, showingportions of a vehicle springand frame. j

Fig. 4 is a view similar to Fig. 3, showing a modified form of bolt.Fig.` 5 vs a similarview showing a further modification.

A practical embodiment of the invention is disclosed in the accompanyingdrawings, forminga part ofthis specification in which similar numeralsof reference Vindicate cor-k Specication of Letters Patent.

Patented Aug. `30, 1921. 1919. serial No. 312,794.

responding parts throughout the severalL In F l is illustrated aplanView ofthe generally by the numeral Y preferably stamped with blankillustrated l, said blank being the blank being butt preferably stampedthe cut-out portions Zalong opposite edges.

This blank is formed in cylindrical shape, the edges '3 upon each'sideof the blank beu ing brought together and spot welded as indicated at tthe ycut-out yportions forming a longitudinal slot 5 in thefinished;bolt 6. The boltl is then screw threaded as shown at 7 upon both endsthereof for the purpose of receiving the nuts 8 and 9.

A portion of the frame of thechassis of an automobile is indicated at land a portion of the leafA spring 2 is shown connected thereto, the boltbeing located through the eye of the spring 1n the usual mannen The nut8 is provided with a closed'efnd 'l0 forming a head for the bolt.Agrease or oil chamber is thus formed within the bolt, the sloti formingmeansv of communication between; said chamber V'and thebearing, the boltis passed through the bearings in the frame or through the bearing-sin ashackle and spring, the nut or head l8 engaging the shackle and the nut9 holding the bolt lin position within the bearing.

VV'Ilhe' oppositely threaded shaft vll is iounted through thelongitudinal center of the bolt and is provided with the taperedextremity 12 arranged to be locatedA in a suitable socket 13 formed inthe head l0. The otherfextremitv of the shaft is 'provided witha headlll'which has a bearing in the screw threaded block l5 which'isinternally threaded intothe nut 9. The head 14 extends through the plug`l5 and is provided with the slot 16 for the reception of a screw driveror other tool.

Mount-ed uponthe threaded shaft ll are the oppositely threaded Each Aof`these plungers comprises two spaced metal disks providedwith a bearingportiomgthe disks being of slightly less diameter than the diameter' of,the grease chamber within rthe bolt and a ,Washer 19 of felt or similarmaterial and extends inwardly over the edge of the inner disk preventingleakage of grease or oil between the periphery of the plunger and theinner surface of the grease chamber. Y

In the form of the invention shown in Fig. 3 the plungers are initiallylocated near opposite extremities of the grease. chamber, and arrangedto be moved toward each other with the rotation of the oppositelythreaded shaft ll to the left, forcing the grease or oil from the greasechamber through the slot 5 and distributing the lu bricant around thebearing surface of the bolt. Y

In order to keep the bearing properly lubricated, a screw driver or coinis from,

time to time, placed in the slotted head of the screw threaded shaft andgiven a few turns to the left, drawing the plungers toward each otherand forcing the grease y through the slot 5 and distributing thelubricant around the bearing surface.

In Fig. l is illustrated a modified form of the bolt. In this figure thechassis frame 1, spring 2 and bolt proper 6 are of the same constructionas that shown inFig. 3, the bolt being provided with the slot 5. Thebolt is screw threaded at each end as shown at 7, the nut 8 beingprovided upon one end and a similar nut 9 being provided upon the otherend.

The screw threaded shaft 1l is mounted within the grease Y chamber andprovided with the head 14 extending through a Suitable bearing in thenut 9', this head eX- tending beyond the nut and provided with a Vslot16 for the reception of a screw driver or other instrument. A washer 2lof leather or similar material is located at the eXtrem'- ity of thebolt and the nut 9, the collar 22 being provided upon the bolt adjacentsaid washer. A plunger 23is mounted upon the shaft ll and provided withthe washer 24 of felt or other suitable material, the edges thereofbeing turned over the plunger'to prevent leakage of grease or oilbetween the plunger and the inner surface of the grease chamber.

Then it is desired to rell this type of bolt, the threaded shaft isfirst turned yto the initial position shown in Fig. 4L, after which thenut 9 is removed and the shaft withdrawn. The chamber may then bz packedwith grease and the shaft and nut replaced.

In Fig. 5 is shown a further modification. In this form the bolt isshown applied to the chassis l and spring 2 in the usual manner, but thebolt 6 is provided with only a small aperture 5 near one extremity inplace of the slot. This type of bolt is best adapted for use with oilrather than grease.

For the purpose of filling the bolt the nut 8 is provided with a channel24 communieating with the interior ofthe bolt and arranged to be closedwith a threaded plug 25. The threaded shaft 26 provided with a conicalend 27 having a bearing in the conical socket 2S formed in the nut 8.The other end of the threaded shaft is squared as shown at 30 andarranged to be received into theY squared socket 31 formed in thethimble 32 which is rotatably mounted in the nut and held againstlateral movement therein by means of the flanges 34. The slot 35 isprovided in the outer end of the thimble for thereception of a screwdriver. A plunger 36 provided with a felt washery 37 is provided uponthe screw threaded shaft. When access to the interior of the bolt isdesired it is only necessary to remove the nut 33, the thimble 32 beingremoved therewith. n Although the drawings and above specificationdisclose the best mode in which I have contemplated embodying myinvention I desire to be not limited to the details of such disclosure,for, in the further practical application of my invention, many changesin form and construction may be made, as circumstances require orexperience suggests, without departing from the spirit of the invention,within the scope of the appended claims.

I claim- Y l. A hollow bearing bolt formed of a sheet of metal havingcutout portions in opposite edges, cent said cut-out portions beingwelded together.

2. A hollow bearing bolt formed of a metal blank pressed intocylindrical form and having spaced, off-set portions at the meetingedgesrthereof, the adjoining edges of the blank being welded together atsaid spaced off-set portions, the finished bolt having an aperture atthe joint.

8. A hollow bearing bolt formed of a metallic blank having off-setportions upon opposite edges pressed into cylindrical form, the off-setportions of adjoining edges being welded together, a slot being formedin the joint between the off-set portions.

4l. A hollow bearing bolt having a longitudinal aperture through itsside and provided with screw threaded extremities, caps mounted uponsaid screw threaded extremities inclosing each end of the bolt, athreaded shaft journaled in said caps and a plunger mounted upon saidthreaded shaft to compress a lubricant within the bolt.

5. A hollow bearing bolt having an aperture through its side and screwthreaded extremities, a kcap mounted upon each screw threaded extremityclosing the ends of the bolt, a thimble provided with a squaredsocketjournaled in one of said caps, a threaded shaft having a Squared theedges of the sheet adj aprovided with portion located in said thimble,the other end of said shaft j ournaled in the other Cap, and a plungermounted upon said shaft to compress ajlubrioant within the bolt.

6. A hollow bearing `shaft having a longitudinal aperture through itsside and provided with screw threaded extremities, caps mounted uponsaid screw threaded extremities closing the ends of the bolt, a threadedshaft journaled in said caps, a plunger mounted upon said shaft tocompress a lubrioant Within the bolt and a filling channel provided inone of said caps and communieating with the interior of said hollowshaft.

tremity, a Screw threaded plug mounted kwithin said nut, a Screwthreaded shaft journaled in said cap and said plug and a plunger mountedupon the screw threaded shaft to compress a lubricant within the bolt.

In testimony that I claim the above, I

have hereunto subscribed my name.

HARRY M. NAUGLE.

